



def A    (							__UpperCamelCase       )    ->   list[int]:

			if length <= 0 or not isinstance(__UpperCamelCase			,						__UpperCamelCase       ):
						raise ValueError('Length must be a positive integer.'       )
			return [n * (2 * n - 1) for n in range(__UpperCamelCase       )]


if __name__ == "__main__":
							print(hexagonal_numbers(length=5))
							print(hexagonal_numbers(length=1_0))








from __future__ import annotations

from math import pow, sqrt
def      UpperCAmelCase__		(UpperCamelCase_				,UpperCamelCase_				,UpperCamelCase_							):



     """simple docstring"""






     if (resistance, reactance, impedance).count(0							) != 1:
          raise ValueError('''One and only one argument must be 0'''							)
     if resistance == 0:
          return {"resistance": sqrt(pow(UpperCamelCase_				,2							) - pow(UpperCamelCase_				,2							)							)}
     elif reactance == 0:
          return {"reactance": sqrt(pow(UpperCamelCase_				,2							) - pow(UpperCamelCase_				,2							)							)}
     elif impedance == 0:
          return {"impedance": sqrt(pow(UpperCamelCase_				,2							) + pow(UpperCamelCase_				,2							)							)}
     else:
          raise ValueError('''Exactly one argument must be 0'''							)


if __name__ == "__main__":
 import doctest

 doctest.testmod()




